RE: creating custom arrays / extending java.util.A rrayList

Here is __getitem__ from org/python/core/PyInstance.java:

    public PyObject __getitem__(PyObject key) {
        CollectionProxy proxy = getCollection();
        if (proxy != CollectionProxy.NoProxy) {
            PyObject ret = proxy.__finditem__(key);
            if (ret == null) {
                throw Py.KeyError(key.toString());
            }
            return ret;
        }

        PyObject ret = trySlice(key, "__getslice__", null);
        if (ret != null)
            return ret;

        return invoke("__getitem__", key);
    }


You can see that the code checks whether your instance
is a collection first and calls its __finditem__ before
calling your __getitem__ method.

You might try extending org.python.core.PyList.



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